Charles m



(No Model.)

0. M. BURGESS.

LOOK CASE.

No. 396,915. Patented Jan. 29, 1889.

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UNITED STATES CHARLES M. BURGESS, OF NEIV BRITAIN, CONNECTICUT, ASSIGNOR TO THE RUSSELL &' ERIVIN MANUFACTURING COMPANY, OF SAME PLACE.

LOC K CAS E.

SPECIFICATION forming part of Letters Patent No. 396,915, dated January 29, 1889.

Application filed September 27, 1888- Serial No. 286,531. (No model.)

To all whom/it may concern: back flange, 6, is also provided with a mor- Be it known that I,'CHARLES M. BURGESS, tise, S, Fig. 2, to receive the tenon 9 on the a citizen of theUnited States, residing atNew part 0. This part is also provided with Britain, in the county of Hartford and State side flanges 10, which are turned up at 5 of Connecticut, have invented certain new and right angles to the body of the plate. These useful Improvements in Lock-Gases, of which flanges are of a width which added to the the following is a specification. width of the flanges 5will equal thethickness My invention relates to improvements in of the body of the lock-case. They do not excases for looks or latches, and the chief obtend quite to thefront end of the plate, thereby 6o 10 ject of my improvements is to produce a subleaving a short distance at the front end of staptial and efficient case at a small cost. the plate free to drop into position between In the accompanying drawings, Figure 1 is the wings '7 7 of the part B. \Vhen the a perspective view of my lock-case as formed part C is placed in position, as shown in Fig. of sheet metal. Fig. 2 is a plan view of the 1, it is prevented from working forward by 15 blank for one side thereof. Fig. 3 is a plan the face-plate A; the end or back flange, 6,

view of the blank for the opposite side, and prevents it from moving back from the face- Fig. 4. is a perspective view of a portion of plate. Its front end is prevented from workmy lock-ease as formed of cast metal. ing laterally-that is, up and down when the The face-plate A is of the ordinary 0011-. case is in position onadoor by the wings? 7, i 20 struction, and is provided with mortises for while the back end is held in the same directhe reception of the lugs 4:, by which it is setion by the tenon 9, resting in the recess 8. cured to the body of the lock'case. The edges of the flanges 5 and 10 abut against B designates that side of the case which each other and form a seam at the edge of constitutes the main part and to which the the case, as shown in Fig. 1. These abutting 2 5 face-plate is secured, and O designates the opedges form a proper seat for the parts B and posite side, which is in the nature of a cap- 0 to rest against and to hold them at the plate. The middle portion of both of these proper distance apart. parts will be provided with suitable openings Instead of forming a projecting lug, 4,wl1ose for the attachment and operation of the lock ends are to be riveted, said lug maybe wider 8o 0 mechanism, the latch mechanism, or the lock and turn ed back parallel to the face-plate and and latch mechanism, said holes being adaptperforated for the reception of a lug or rivet ed to any known construction of latches or by which to secure the face-plate, as shown at locks and latches, and therefore I consider it 11, Fig. i, this form of lug being applicable to unnecessary to specifically describe them. either cast or sheet metal cases. 3 5 The part B is provided with side flanges 5 Fig. at illustrates a east-metal or foundried 5 and an end or back flange, G, which flanges lock-case in the form first described, with the are to be turned or swaged up at right angles exception of the perforated lug 11, and .the to the plate, substantially 011 the broken lines same reference letters and figures indicate shown in Fig. 2, to make the said part 1% apcorresponding parts. \Vhen the case cast, 4o proximately form a box or case. The flange the seam at the edge makes the flanges of less (3 is of a width fully equal to the thickness of width, and consequently more convenient to the body of the case, while the flanges 5 5, for east, while the flanges on the cap-plateor part the greater part of theirlength, are only partly C,when either swaged or cast, stiffen the plate as wide as the body of the case is thick. Near and prevent warping. 5 the front or face-plate end these flanges are 3y my improvement the lock-case can be widened out into wings '7 7, which areas wide cheaply formed either by casting or cutting as the body of the lock-case is thick. On the and swaging, while at the same time the case front end of these flanges I form the lugs at 4, is very substantial and durable. The plate 0 for the attachment of the faceplate. I also is seeurelyhcld in position and cheaply fitted, I00 50 pref ,r to form an intermediate lug, 4, at or while by making the side flanges partly on. near the middle of the plate, as shown. The each plate and leaving the flanges 5 5 of full width at the front end I secure a broad bearing' for the face-plate and substantial lugs by which to secure the face-plate to the body of the lock-case.

I claim as my invention The improved lock-case herein shown and described, consisting of the face-plate A and two side plates,B and 0, each of the latter having the side flanges, whose edges abut against each other for a partof the length of 10 the case, while the flanges upon one part are widened at the front end, substantially as described, and for the purpose specified.

CHARLES M. BURGESS.

\Vitnesses:

Tnos. S. BIsHoP, M. S. VVIARD. 

